Igboho in context: Street-network sprawl trends
Igboho in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Igboho plotted against Oyo and Nigeria. The SNDi of new construction in Igboho rose steadily, compared to Oyo which followed a zig-zag trend with an overall increase and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Igboho's incremental SNDi rose from 2.32 to 3.21 between 1991-2005 and 2006-2020. In terms of the aggregate network, Igboho ranked 5th out of 15 cities in Oyo and 105th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 3.21
- Rank in Nigeria
- 124th of 422
- Rank in Oyo
- 6th of 15
Entire Network (Aggregate)
- SNDi value
- 2.33
- Rank in Nigeria
- 105th of 422
- Rank in Oyo
- 5th of 15
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Ghatampur, India
- Barwani, India
- Raleigh, United States
- Amparihimahitsy, Madagascar
- Weining, China
- Kislovodsk, Russia
In new street additions, Igboho built increasingly disconnected streets over time, while Ghatampur built increasingly disconnected streets from 1975 through 1991-2005, then improved and Amparihimahitsy built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Igboho and Ghatampur both became progressively more disconnected, while Amparihimahitsy grew more disconnected from 1975 through 1976-1990, then improved. Igboho and Ghatampur have been growing further apart in their street-network character since 1975.